Disabling a Tlistview

[pierrotsc]

I am disabling temporarily the onselectitem of a listview. I use
// disable Objects interaction
Mainform.ListViewObjects.OnSelectItem := nil;

Now how to i re enable it ?

Sincerely,
Pierre

 

[whosrdaddy]

the temp disable happens in a scope of a specific procedure, or for a longer time?
Anyway, you must reassign the eventhandler:

Mainform.ListViewObjects.OnSelectItem := <OriginalEventHandlerProcedure>;

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[Glenn9999]

Quick example. This is in a media player where the Trackbar must be moved to match the position of the song. The event handler has to be disabled because it would fire upon setting the position, causing a very undesirable situation in the program.

  TrackBar1.OnChange := nil;
  Trackbar1.Position := MediaPlayer1.Position;
  TrackBar1.OnChange := TrackBar1Change; //(name of the handler within the form)